Most paper passes have gone the way of the dinosaur on Muni. If you want to ride the bus now, you'll need one of the cards or cash.

BART also accounted for a ridership spike, with nearly 100,000 weekday boardings. The agency is planning to incorporate the card into its parking program, allowing riders to pay for their spot by waving their card.

Later this month, BART will deactivate its EZ Rider program. That's caused some concern, since many riders still rely on the EZ Rider cards. BART came under fire for an insufficient outreach campaign about the switch.

Also this month, Clipper will expand to SamTrans. And by next year, it'll be in place in Santa Clara.